Merge branch...

Merge branch '5800-in-certain-occasion-like-cancel-an-apply-template-end-of-a-delete-or-move-i-got-an-ldap-error' into '1.3-dev'

Resolve "In certain occasion, like cancel an apply template, end of a delete or move i got an ldap error"

See merge request fusiondirectory/fd!191

(cherry picked from commit dce6f964)

8ee44b68  fix(simpleplugin) Return proper error when no DN could be computed